204306313061 has 4 divisors (see below), whose sum is σ = 204308330124. Its totient is φ = 204304296000.

The previous prime is 204306313051. The next prime is 204306313073. The reversal of 204306313061 is 160313603402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36021762436 + 168284550625 = 189794^2 + 410225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204306313061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204306313051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848090 + ... + 1062011.

It is an arithmetic number, because the mean of its divisors is an integer number (51077082531).

Almost surely, 2^204306313061 is an apocalyptic number.

It is an amenable number.

204306313061 is a deficient number, since it is larger than the sum of its proper divisors (2017063).

204306313061 is a wasteful number, since it uses less digits than its factorization.

204306313061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017062.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 204306313061 its reverse (160313603402), we get a palindrome (364619916463).

The spelling of 204306313061 in words is "two hundred four billion, three hundred six million, three hundred thirteen thousand, sixty-one".